Deep Learning to find Orchards in Annapolis Royal¶
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#######################################################################################################################
# Script Name: Orchards_Detection_Attempt8.ipynb
# Purpose: To complete the entire object detection workflow in one script
# Modifications to code and comments by: Shannon England
#
# Note: the original script was obtained from the arcgis-python-api-master folder,downloaded from the website
# https://github.com/Esri/arcgis-python-api
#######################################################################################################################
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# showing the path to the imagery used to create the training samples
# this was done using the Export Trianing Samples for Deep Learning tool in ArcGIS Pro
mosaic = r'E:\ShannonE\GDA_Project_SE\Historical_Orthomosaic\Rotated_Mosaic.tif'
mosaic
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# connecting to folder containing exported training samples : settings were 750 x 750 pixels with 375 stride in x and y direction
training_data = r'E:\ShannonE\GDA_Project_SE\Historical_Orthomosaic\Attempt8'
training_data
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Prepare Data¶
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# importing prepare data library from arcgis to apply transformations and enhance the orchards layer
from arcgis.learn import prepare_data
data = prepare_data(training_data, {1: 'Young Orchard',
2: 'Mixed Orchard',
4: 'Overexposed'})
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data.show_batch()
Train SingleShotDetector Model¶
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# importing the object detection model that will be used
from arcgis.learn import SingleShotDetector
# settings for single shot detector
ssd = SingleShotDetector(data, grids=[2,1])
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# finding the optimum learning rate - low learning rate leads to slow training of model
ssd.lr_find()
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# showing the model learning the task by showing the loss and validation for the training data
ssd.fit(10, slice(0.001, 0.02))
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# visualizing the results of the trained model
ssd.show_results(rows=20, thresh=0.05)
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# saving the trained model
ssd.save('OrchardDetector_8')